WO2000049607A3 - Magnetic data storage tape with etched servo track - Google Patents

Magnetic data storage tape with etched servo track Download PDF

Info

Publication number
WO2000049607A3
WO2000049607A3 PCT/US2000/003225 US0003225W WO0049607A3 WO 2000049607 A3 WO2000049607 A3 WO 2000049607A3 US 0003225 W US0003225 W US 0003225W WO 0049607 A3 WO0049607 A3 WO 0049607A3
Authority
WO
WIPO (PCT)
Prior art keywords
etched
magnetically
read
data storage
servo
Prior art date
Application number
PCT/US2000/003225
Other languages
French (fr)
Other versions
WO2000049607A2 (en
Inventor
Mark P Lubratt
Robert C Martin
Richard W Molstad
Original Assignee
Imation Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imation Corp filed Critical Imation Corp
Priority to JP2000600268A priority Critical patent/JP2002537623A/en
Priority to DE10084269T priority patent/DE10084269T1/en
Publication of WO2000049607A2 publication Critical patent/WO2000049607A2/en
Publication of WO2000049607A3 publication Critical patent/WO2000049607A3/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/596Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on disks
    • G11B5/59633Servo formatting

Abstract

Magnetic data storage tapes with etched servo patterns are disclosed along with methods of manufacturing the tapes. The servo tracks formed by etching may be read magnetically by magnetically overwriting a pattern etched into a magnetic coating on the tape, followed by detecting the electromagnetic modulation caused by the servo pattern etched into the magnetic coating. The etched servo pattern may also be read optically in addition to magnetically, with the optical writing occurring simultaneously, sequentially or both simultaneously and sequentially. Whether the servo tracks are read magnetically or magnetically and optically, the electromagnetic and/or electromagnetic/optical modulation caused by the etched pattern can be used to accurately position a read/write head on the tape.
PCT/US2000/003225 1999-02-17 2000-02-08 Magnetic data storage tape with etched servo track WO2000049607A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000600268A JP2002537623A (en) 1999-02-17 2000-02-08 Magnetic data storage tape with etched servo tracks
DE10084269T DE10084269T1 (en) 1999-02-17 2000-02-08 Data storage magnetic tape with etched servo track

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/251,648 US6433951B1 (en) 1999-02-17 1999-02-17 Magnetic data storage tape with etched servo pattern, method of manufacturing same, and method of servo positioning on same
US09/251,648 1999-02-17

Publications (2)

Publication Number Publication Date
WO2000049607A2 WO2000049607A2 (en) 2000-08-24
WO2000049607A3 true WO2000049607A3 (en) 2000-12-14

Family

ID=22952844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/003225 WO2000049607A2 (en) 1999-02-17 2000-02-08 Magnetic data storage tape with etched servo track

Country Status (4)

Country Link
US (1) US6433951B1 (en)
JP (1) JP2002537623A (en)
DE (1) DE10084269T1 (en)
WO (1) WO2000049607A2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4293733B2 (en) * 1999-02-16 2009-07-08 クウォンタム・コーポレイション Servo signal writing method to magnetic tape
US6606220B1 (en) * 1999-06-11 2003-08-12 Quantum Corporation Systems and methods for providing beginning-of-tape and end-of-tape indicators
US6961200B2 (en) * 1999-07-27 2005-11-01 Quantum Corporation Optical servo track identification on tape storage media
US6493174B1 (en) * 2000-02-17 2002-12-10 Imation Corp. Optical servo system for use with magnetic data storage tape having magnetic reference indicators
US6940676B1 (en) * 2000-06-07 2005-09-06 Quantum Corporation Triple push-pull optical tracking system
US6940681B2 (en) * 2001-08-20 2005-09-06 Quantum Corporation Optical to magnetic alignment in magnetic tape system
US6856484B2 (en) * 2001-09-05 2005-02-15 Quantum Corporation Magnetic servo of a recording head
US7511912B2 (en) * 2002-11-22 2009-03-31 Seagate Technology Llc Writing multiple servo sector patterns to improve servo sector alignment on multiple surfaces
US6980390B2 (en) * 2003-02-05 2005-12-27 Quantum Corporation Magnetic media with embedded optical servo tracks
US7102845B2 (en) * 2003-10-20 2006-09-05 Quantum Corporation Servo methods and systems using existing data structures and medium edge position
US7085095B2 (en) * 2003-10-20 2006-08-01 Quantum Corporation Electromagnetic void-sensing probes and position control systems
US7149050B2 (en) 2003-10-20 2006-12-12 Quantum Corporation Diffractive position sensors and control systems
US7136255B2 (en) * 2003-10-20 2006-11-14 Quantum Corporation Servo methods and systems using masked medium edge position sensors
US7116514B2 (en) * 2003-10-20 2006-10-03 Quantum Corporation Methods and systems for magnetic recording
US7139152B2 (en) * 2003-10-20 2006-11-21 Quantum Corporation Servo methods and systems using existing data structures and optical masks
US7184233B2 (en) * 2004-06-04 2007-02-27 Quantum Corporation Dual source tracking servo systems and associated methods
GB2419221B (en) * 2004-10-14 2009-12-02 Hewlett Packard Development Co Tape drive apparatus
US7499235B2 (en) * 2005-03-18 2009-03-03 Quantum Corporation Auto-servo tape system and associated recording head
US7414803B2 (en) * 2005-05-19 2008-08-19 Quantum Corporation Write protected magnetic storage media and associated methods
US7265922B2 (en) * 2005-10-27 2007-09-04 International Business Machines Corporation Asperity data storage system, method and medium
US8576505B2 (en) * 2005-10-28 2013-11-05 Hewlett-Packard Development Company, L.P. Tape drive apparatus and method
US7826169B2 (en) * 2007-04-25 2010-11-02 Quantum Corporation Servo error detection and compensation utilizing virtual data tracking servo methods

Citations (8)

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Publication number Priority date Publication date Assignee Title
JPS6070543A (en) * 1983-09-28 1985-04-22 Toshiba Corp Information recording carrier
US4645722A (en) * 1983-09-22 1987-02-24 Director-General Of Agency Of Industrial Science & Technology Photo-thermo-magnetic recording medium and method of preparing same
JPS6442044A (en) * 1987-08-10 1989-02-14 Nec Corp Optical recording medium
JPH03201215A (en) * 1989-12-27 1991-09-03 Tdk Corp Magnetic recording medium and method of magnetic recording and reproducing
US5089358A (en) * 1988-11-05 1992-02-18 Brother Kogyo Kabushiki Kaisha Optical recording medium
US5283773A (en) * 1992-06-10 1994-02-01 Iomega Corporation Steering laser beam while etching optical servo tracks for magnetic disks
US5619480A (en) * 1992-11-06 1997-04-08 Mitsubishi Chemical Corporation Magnetic recording medium and recording/reproducing method therefor as well as information processing apparatus by means thereof
US5674583A (en) * 1989-11-22 1997-10-07 Sharp Kabushiki Kaisha Optical recording medium and manufacturing method thereof

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Publication number Priority date Publication date Assignee Title
US4315283A (en) 1976-04-08 1982-02-09 Victor Company Of Japan, Ltd. High density recording system using side-by-side information and servo tracks
US4816939A (en) * 1986-08-21 1989-03-28 Polaroid Corporation Magnetic recording media and servo systems using light-transmitting optical gratings
US4843494A (en) * 1987-10-15 1989-06-27 Polaroid Corporation Data storage apparatus using optical servo tracks
US4961123A (en) * 1988-06-03 1990-10-02 Insite Peripherals Magnetic information media storage with optical servo tracks
US5067039A (en) 1989-10-20 1991-11-19 Insite Peripherals, Inc. High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media
US5279775A (en) 1992-06-10 1994-01-18 Iomega Corporation Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media
GB9224003D0 (en) * 1992-11-16 1993-01-06 Minnesota Mining & Mfg Magnetic recording materials
US5689384A (en) 1994-06-30 1997-11-18 International Business Machines Corporation Timing based servo system for magnetic tape systems
JPH0850716A (en) * 1994-08-03 1996-02-20 Hitachi Maxell Ltd Magnetic recording medium
US6018434A (en) * 1997-01-14 2000-01-25 Quantum Corporation Tape cartridge having written-in-defect servo patterns for rapid head position calibration

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645722A (en) * 1983-09-22 1987-02-24 Director-General Of Agency Of Industrial Science & Technology Photo-thermo-magnetic recording medium and method of preparing same
JPS6070543A (en) * 1983-09-28 1985-04-22 Toshiba Corp Information recording carrier
JPS6442044A (en) * 1987-08-10 1989-02-14 Nec Corp Optical recording medium
US5089358A (en) * 1988-11-05 1992-02-18 Brother Kogyo Kabushiki Kaisha Optical recording medium
US5674583A (en) * 1989-11-22 1997-10-07 Sharp Kabushiki Kaisha Optical recording medium and manufacturing method thereof
JPH03201215A (en) * 1989-12-27 1991-09-03 Tdk Corp Magnetic recording medium and method of magnetic recording and reproducing
US5283773A (en) * 1992-06-10 1994-02-01 Iomega Corporation Steering laser beam while etching optical servo tracks for magnetic disks
US5619480A (en) * 1992-11-06 1997-04-08 Mitsubishi Chemical Corporation Magnetic recording medium and recording/reproducing method therefor as well as information processing apparatus by means thereof

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 210 (P - 383) 28 August 1985 (1985-08-28) *
PATENT ABSTRACTS OF JAPAN vol. 013, no. 239 (P - 879) 6 June 1989 (1989-06-06) *
PATENT ABSTRACTS OF JAPAN vol. 015, no. 469 (P - 1281) 27 November 1991 (1991-11-27) *

Also Published As

Publication number Publication date
US6433951B1 (en) 2002-08-13
DE10084269T1 (en) 2002-03-28
JP2002537623A (en) 2002-11-05
WO2000049607A2 (en) 2000-08-24

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